Calculating baseurl length instead of assumig based on default settings

[escowles]

• adding tests for templates of varying lengths
• Fixes Wrong id for short ids #10

[escowles]

Hmm, the Travis build is failing because of this:

https://github.com/projecthydra/active_fedora/blob/master/lib/active_fedora.rb#L210

@jcoyne, do I need to set the environment in the Rakefile?

[jcoyne]

@escowles that error is saying that RAILS_ENV is set. But I don't see anywhere in the code that sets that, so I'm confused.

[escowles]

It seems strange that Travis would set that without us configuring it. The other way to handle this would be to explicitly set the 'environment' variable. I tried to add that to the Rakefile but nothing worked for me.

[escowles]

I resolved the Travis issue by explicitly specifying the rake invocation with the environment variable, and stubbing out the AF config to prevent attempts to connect to Fedora.